CN207217833U - Plug connector, socket connector and electric connector combination - Google Patents

Abstract

Connector technique field is the utility model is related to, more particularly to a kind of plug connector, socket connector and electric connector combination.The utility model embodiment discloses a kind of plug connector, including：The insulating body of integral structure, with the first grafting space, insulating body includes upper wall, lower wall and two side, upper wall inner surface forms first end pilot trench to the first grafting is spatially extended, lower wall inner surface forms Second terminal groove to the first grafting is spatially extended, third terminal groove is formed between upper wall and lower wall and two side, and third terminal geosynclinal convex, for the first grafting space, the part that the first grafting space is protruded in two side is provided with opening.By the above-mentioned means, extending design of the utility model embodiment based on standard USB Type C connectors, the demand that can be directed to user assembles extra terminal.

Description

Plug connector, socket connector and electric connector combination

Technical field

Connector technique field is the utility model is related to, more particularly to a kind of plug connector, socket connector and electricity Connector combination.

Background technology

Now, electronic installation is attached to perform the transmission of data through a variety of electric connectors with electronic computer, with The fast USB of transmission speed (Universal Serial Bus, USB) connector is using relatively broad.With general The evolution of serial bus connector technology, has been developed a kind of new universal serial bus connector, and its connection size is less than Existing Micro-USB standard criterion, there is at least 10Gbit/s message transmission rate and charge power to rise to 100 Watt, such as the USB Type-C designed by based on the specifications of USB 3.1.

Another big feature of the USB Type-C connectors for allow user with the direction of front or back with it is another Butt connector carries out grafting.To meet the demand, in the specification of standard USB Type-C connectors, the connector must At least 24 terminals must be included, and the multiple terminal is divided into upper row's terminal and lower row's terminal.Upper row's terminal with it is described Lower row's terminal is in symmetric arrays each other, to meet the demand for allowing two-way plug.On the other hand, for specific electronic product and Speech, a part of connector based on standard USB Type-C must increase extra terminal, therefore, it is necessary in a limited space Increase number of terminals.

Utility model content

The utility model embodiment is mainly solving the technical problems that provide a kind of plug connector, socket connector and electricity Connector combination, based on the extending design of standard USB Type-C connectors, the demand that can be directed to user assembles extra end Son.

In order to solve the above technical problems, the technical scheme that the utility model uses is：A kind of plug connector is provided, Including：

The insulating body of integral structure, there is the first grafting space, insulating body includes upper wall, lower wall and two side, Upper wall inner surface forms first end pilot trench to the first grafting is spatially extended, and lower wall inner surface forms the to the first grafting is spatially extended Two-terminal groove, forms third terminal groove between upper wall and lower wall and two side, and third terminal geosynclinal convex is for the first grafting space, The part that the first grafting space is protruded in two side is provided with opening, and the part that the first grafting space is protruded in upper wall and two side is formed The part that the first grafting space is protruded in extension, lower wall and two side forms lower extension；

First plug terminal, it is fixed on first end pilot trench；

Second plug terminal, it is fixed on Second terminal groove；

3rd plug terminal, it is fixed on third terminal groove；

Metal shell, is fixed on insulating body, and metal shell partly encloses with upper extension and lower extension to be formed second and insert Connect space；

First plug terminal, the second plug terminal and the 3rd plug terminal include contact site, connecting portion and weld part, the The contact site of one plug terminal and the second plug terminal is revealed in the first grafting space, and the contact site of the 3rd plug terminal is revealed in Second grafting space.

Alternatively, the first grafting space and the second grafting space are square structure；

Alternatively, the height of the contact site of the 3rd plug terminal is more than the height of part connecting portion, the 3rd plug terminal Connecting portion is provided with the clamping part bent up or down close to one end of weld part；

The fixing groove matched with clamping part is provided between upper wall and lower wall and two side.

Alternatively, the direction in two side to the first grafting space, which extends, to form the first projection；

The connecting portion of 3rd plug terminal is provided with projection, and projection is in contact with the first projection.

Alternatively, the inside of insulating body is provided with the second projection；

The connecting portion of first plug terminal and the second plug terminal is provided with stuck point, and stuck point engages solid with the second projection It is fixed.

The utility model embodiment also provides a kind of socket connector, including：

Socket insulating body, barricade, the first female terminal, the second female terminal, the 3rd female terminal, and be fixed on The jack housing of socket insulating body；

Barricade, the first female terminal, the second female terminal and the 3rd female terminal produced by insert molding are in socket insulating body Interior, socket insulating body has a plug division；

Socket insulating body includes base portion and the hyoplastron being connected with base portion, and barricade is embedded in hyoplastron, the first female terminal It is located at the both sides up and down of barricade with the second female terminal, the 3rd female terminal is located at the both ends of base portion.

Grafting frame mouth of the front port of jack housing formed with square structure.

Alternatively, the first female terminal, the second female terminal and the 3rd female terminal include contact site, connecting portion and weldering Socket part；

The contact site of first female terminal and the second female terminal includes contact site main body and terminal head portion, contact site master Body is exposed to the upper and lower surface of hyoplastron, and terminal head portion is provided with Z-shaped kink, and the thickness of terminal head portion is less than the thickness of contact site main body Degree.

Alternatively, the contact site of the 3rd female terminal is exposed to the upper surface of base portion；Or

3rd female terminal includes upper 3rd female terminal and lower 3rd female terminal, upper 3rd female terminal and the lower 3rd The contact site of female terminal is exposed to the upper and lower surface of base portion respectively.

Alternatively, socket insulating body includes the first insulating body and the second insulating body, barricade, the first socket end Son, the second female terminal, the 3rd female terminal and the first insulating body edge bury shaping；

The front end of barricade is provided with a hollow rectangle region, and the upper and lower surface of the first insulating body forms upper terminal respectively The front end of groove and lower end pilot trench, part upper end pilot trench and lower end pilot trench protrudes from rectangle region；

Second insulating body is taken shape in outside the first insulating body.

The utility model embodiment also provides a kind of electric connector combination, including plug connector as above and inserting as above Base connector；

The plug division of socket connector and the first grafting interference fit of plug connector；

First female terminal of socket connector, the second female terminal, the 3rd female terminal respectively with plug connector First plug terminal, the second plug terminal, the docking of the 3rd plug terminal coordinate.

The beneficial effect of the utility model embodiment is：Prior art is different from, the plug of the utility model embodiment connects Extending design of the device based on standard USB Type-C connectors is connect, is formed between the upper wall of insulating body and lower wall and two side Third terminal groove, and third terminal geosynclinal convex, for the first grafting space, the part in two side the first grafting space of protrusion, which is provided with, opens Mouthful, by the way that the 3rd plug terminal is fixed on third terminal groove, the demand that can be directed to user assembles extra terminal.

Brief description of the drawings

One or more embodiments are illustrative by the picture in corresponding accompanying drawing, and these are exemplary Illustrate not form the restriction to embodiment, the element with same reference numbers label is expressed as similar member in accompanying drawing Part, unless there are special statement, composition does not limit the figure in accompanying drawing.

Fig. 1 is the three-dimensional structure diagram of the plug connector of the utility model embodiment；

Fig. 2 is the three-dimensional exploded view of the plug connector of the utility model embodiment；

Fig. 3 is the structural representation of the insulating body of the plug connector of the utility model embodiment；

Fig. 4 is the sectional view in Fig. 1 A-A directions；

Fig. 5 is the sectional view in Fig. 1 B-B directions；

Fig. 6 is the structural representation of the plug end subgroup of the plug connector of the utility model embodiment；

Fig. 7 is the three-dimensional structure diagram of the socket connector of the utility model embodiment；

Fig. 8 is the three-dimensional exploded view of the socket connector of the utility model embodiment；

Fig. 9 is that the socket connector of the utility model embodiment removes the three-dimensional structure diagram of jack housing；

Figure 10 is that the socket connector of the utility model embodiment removes another three-dimensional structure diagram of jack housing；

Figure 11 is the structural representation of the socket end subgroup of the socket connector of the utility model embodiment；

Figure 12 is the barricade of the socket connector of the utility model embodiment, socket end subgroup and the first insulating body edge Bury the schematic diagram of shaping.

Embodiment

For the ease of understanding the utility model, below in conjunction with the accompanying drawings and specific embodiment, the utility model is carried out more detailed Thin explanation.It should be noted that when element is expressed " being fixed on " another element, it can be directly in another element Above or therebetween there may be one or more elements placed in the middle.When an element is expressed " connection " another element, it can To be directly to another element or there may be one or more elements placed in the middle therebetween.This specification is used Term " vertical ", " horizontal ", "left", "right" and similar statement for illustrative purposes only.

Unless otherwise defined, technology all used in this specification and scientific terminology are with belonging to skill of the present utility model The implication that the technical staff in art field is generally understood that is identical.In art used in the description of the present utility model in this specification Language is intended merely to describe the purpose of specific embodiment, is not intended to limit the utility model.Term used in this specification "and/or" includes the arbitrary and all combination of one or more related Listed Items.

Refer to Fig. 1 and Fig. 2, Fig. 1 is the three-dimensional structure diagram of the plug connector 10 of the utility model embodiment, Fig. 2 For the three-dimensional exploded view of the plug connector 10.As shown in Fig. 2 the plug connector 10 of the utility model embodiment includes： The insulating body 100 and plug end subgroup of integral structure, wherein, plug end subgroup includes the first plug terminal 200, and second inserts The plug terminal 400 of joint terminal 300 and the 3rd.

The plug connector 10 also includes earthing member 500, snap close piece 600 and metal shell 700.Earthing member 500 includes Two panels, is fixed on the leading section of insulating body 100, including protrudes into the ground strip 510 in grafting space 110；Snap close piece 600 is solid Due to the two side of leading section, include two elastic arms and connect the holding parts of two elastic arms；Metal shell 700 is fixed on insulation originally Body 100.

Fig. 3-Fig. 5 is referred to, Fig. 3 is the three-dimensional structure diagram of the insulating body 100 of the plug connector 10, Fig. 4 and Fig. 5 For the sectional view of the diverse location of the plug connector 10.As shown in figure 3, insulating body 100 has the first grafting space 110, insulating body 100 includes upper wall 120, lower wall 130 and two side 140.Wherein, the inner surface of upper wall 120 is empty to the first grafting Between 110 extension form first end pilot trench 121, the first plug terminal 200 is fixed on first end pilot trench 121；The inner surface of lower wall 130 to The extension of first grafting space 110 forms Second terminal groove 131, and the second plug terminal 300 is fixed on Second terminal groove 131；Upper wall Third terminal groove 141 is formed between 120 and lower wall 130 and two side 140, the 3rd plug terminal 400 is fixed on third terminal groove 141, therefore, third terminal groove 141 is divided into third terminal groove and lower third terminal groove again, and the 3rd plug terminal 400 is also classified into Upper 3rd plug terminal and lower 3rd plug terminal.

Third terminal groove 141 protrudes from the first grafting space 110, then forms upper wall 120, the lower wall of third terminal groove 141 130 and two side 140 also necessarily protrude from the first grafting space 110.

In the present embodiment, the part in first grafting space 110 of the protrusion of two side 140 is provided with opening 1401, by two The part that side wall 140 protrudes the first grafting space 110 sets opening 1401 so that upper wall 120 and lower wall 130 protrude from first The part in grafting space 110 is not connected by side wall 140, the portion in upper wall 120 and the first grafting space 110 of protrusion of two side 140 Divide and form upper extension, the part that the first grafting space 110 is protruded in lower wall 130 and two side 140 forms lower extension.

As shown in figure 1, metal shell 700 partly encloses to form the second grafting space 710 with upper extension and lower extension.

First plug terminal 200, the second plug terminal 300 and the 3rd plug terminal 400 include contact site, connecting portion and Weld part.Referring to Fig. 6, Fig. 6 shows the contact site 210, connecting portion 220 and weld part 230 of the first plug terminal 200, the Contact site 310, connecting portion 320 and the weld part 330 of two plug terminals 300, the contact site 410 of the 3rd plug terminal 400, connection Portion 420 and weld part 430.

The contact site 310 of the plug terminal 300 of contact site 210 and second of first plug terminal 200 is revealed in the first grafting Space 110, the contact site 410 of the 3rd plug terminal 400 are revealed in the second grafting space 710.

First grafting space 110 and the second grafting space 710 are square structure.

Alternatively, the height of the contact site 410 of the 3rd plug terminal 400 is more than the height of part connecting portion 420, connecting portion 420 are provided with the clamping part 421 bent up or down close to one end of weld part 430, and connecting portion 420 is additionally provided with projection 422；The The connecting portion 220 of one plug terminal is provided with stuck point 221, and the connecting portion 320 of the second plug terminal is provided with stuck point 321.

Referring to Fig. 5, the clamping with the 3rd plug terminal is provided between upper wall 120 and lower wall 130 and two side 140 The fixing groove 142 that portion 421 matches, by the way that clamping part 421 is fixed in fixing groove 142 so that the 3rd plug terminal 400 is exhausted Fixation inside edge body 100 is more firm.

Further, the direction in two side 140 to the first grafting space 110 extends to form the first projection 143, the 3rd plug The projection 422 of terminal is in contact with the first projection 143, and support and position-limiting action are played with the connecting portion 420 to the 3rd plug terminal, Prevent the contact site of the 3rd plug terminal and lower 3rd plug terminal plug when contact, meanwhile, with socket connector pair In slotting process, the first projection 143 abuts to the base portion of socket connector, can prevent the grafting of plug connector 10 from excessively damaging Bad connector.

Referring to Fig. 4, the inside of insulating body 100 is additionally provided with the second projection 150, the stuck point of the first plug terminal 221 and second the stuck point 321 of plug terminal be fixed with the second projection 150 so that the overall structure of electric connector 10 is more It is firm.In the present embodiment, the inside of insulating body 100 is additionally provided with the 3rd projection 160 being connected with the second projection 150, for side Just the insertion of the first plug terminal 200 and the second plug terminal 300, the height of the 3rd projection 160 are less than the second projection 150 Highly.

Prior art is different from, the plug connector of the utility model embodiment is based on standard USB Type-C connectors Extending design, between the upper wall of insulating body and lower wall and two side formed third terminal groove, and third terminal geosynclinal convex for First grafting space, the part that the first grafting space is protruded in two side are provided with opening, by the way that the 3rd plug terminal is fixed on into the On three terminal grooves, the demand that can be directed to user assembles extra terminal.

A kind of socket connector is also disclosed in the utility model embodiment, refers to Fig. 7 and Fig. 8, and Fig. 7 electrically connects for the socket The three-dimensional structure diagram of device 20, Fig. 8 are the three-dimensional exploded view of the electric connector for socket 20.As shown in fig. 7, the utility model embodiment Socket connector 20 include：Socket insulating body 2100, barricade 2200 and socket end subgroup, in addition to two panels metallic shield Piece 2600 and jack housing 2700, wherein, socket end subgroup includes the first female terminal 2300, the second female terminal 2400 and the Three female terminals 2500, jack housing 2700 are fixed on socket insulating body 2100, the front port of jack housing 2700 formed with The grafting frame mouth 2710 of square structure.

Fig. 9 and Figure 10 are referred to, barricade 2200, the first female terminal 2300, the second female terminal 2400 and the 3rd are inserted For the seat produced by insert molding of terminal 2500 in socket insulating body 2100, socket insulating body 2100 has a plug division 2110；Socket Insulating body 2100 includes base portion 2120 and the hyoplastron 2130 being connected with base portion, and barricade 2200 is embedded in hyoplastron 2130, and first The female terminal 2400 of female terminal 2300 and second is located at the both sides up and down of barricade 2200, and the 3rd female terminal 2500 is located at base The both ends in portion 210.

First female terminal 2300, the second female terminal 2400 and the 3rd female terminal 2500 include contact site, connection Portion and weld part.Figure 11 is referred to, Figure 11 shows the contact site 2310, connecting portion 2320 and welding of the first female terminal 2300 Portion 2330, contact site 2410, connecting portion 2420 and the weld part 2430 of the second female terminal 2400, the 3rd female terminal 2500 Contact site 2510, connecting portion 2520 and weld part 2530.

Wherein, the contact site 2310 of the first female terminal includes contact site main body 2311 and terminal head portion 2312, contact site Main body 2311 is exposed to the upper surface of hyoplastron, and terminal head portion 2312 is provided with the Z-shaped kink bent downwards, the thickness of terminal head portion 2312 Thickness of the degree less than contact site main body 2311；The contact site 2410 of second female terminal includes contact site main body 2411 and terminal head Portion 2412, contact site main body 2411 are exposed to the lower surface of hyoplastron 2130, and terminal head portion 2412 is provided with the Z-shaped bending being folded upward at Portion, the thickness of terminal head portion 2412 are less than the thickness of contact site main body 2411.Inserted by the way that terminal head portion 2312 and 2412 is embedded in Seat insulating body 2100 in, leave behind the upper and lower surface that contact site main body 2311 and 2411 is exposed to hyoplastron, prevent plug oblique cutting or Error causes to damage to female terminal.

The contact site 2510 of 3rd female terminal is exposed to the upper surface of base portion 2120.In other embodiments, the 3rd socket The contact site of terminal can also be exposed to the lower surface of base portion, and now, the 3rd female terminal only includes contact site；Or the 3rd socket The contact site of terminal vertically runs through base portion, is exposed to the upper and lower surface of base portion；Or the 3rd female terminal include upper 3rd socket end The contact site of sub and lower 3rd female terminal, upper 3rd female terminal and lower 3rd female terminal is exposed to the upper following table of base portion respectively Face.

Alternatively, as shown in Figure 10, the weld part 2530 of the female terminal of weld part 2330 and the 3rd of the first female terminal Extend back socket insulating body 2100, weld part 2330, the weld part of the second female terminal of the first female terminal 2430 and the 3rd the weld part 2530 of female terminal be generally aligned in the same plane.Two row's pins of the terminal up and down in conventional design are set Front two rows is counted into, is easy to assemble, wherein, weld part is SMT welding foots.

Alternatively, socket insulating body 2100 includes the first insulating body 2100A and the second insulating body, such as Figure 12 institutes Show, barricade 2200, the first female terminal 2300, the second female terminal 2400, the 3rd female terminal 2500 and the first insulation are originally Body 2100A edges bury shaping.

The front end of barricade 2200 is provided with a hollow rectangle region 2210, the first insulating body 2100A upper and lower surface point Do not form upper end pilot trench and lower end pilot trench, the front end of part upper end pilot trench and lower end pilot trench protrudes from rectangle region 2210, will First female terminal 2300 inserts upper end pilot trench, and the second female terminal 2400 inserts lower end pilot trench, and the 3rd female terminal 2500 is put Behind the first insulating body 2100A both sides, the second insulating body is obtained by injection molding, the second insulating body takes shape in Outside one insulating body 2100A., can be effectively because the front end of part upper end pilot trench and lower end pilot trench protrudes from rectangle region 2210 Avoid the occurrence of terminal head portion and barricade contact causes the situation of electric connector short circuit.

Wherein, the second insulating body is filled in the first insulating body 2100A front end so that the front end of barricade 2200, Terminal head portion 2412, the 3rd female terminal 2500 of the female terminal of terminal head portion 2312 and second of first female terminal are respectively positioned on Second insulating body.In addition, the second insulating body is also filled up in the first insulating body 2100A other places, with the first insulation Body 2100A is integrally formed formula structure.The insulating body 2100 being made up of the first insulating body 2100A and the second insulating body is not Gap be present, the insulating body 2100 after multiple plug of socket connector 20 can be reduced and the risk divided occur, connect socket The overall structure of device 20 is more firm.In the present embodiment, insulating body includes the insulation of the first insulating body 2100A and second originally Body, in other embodiments, insulating body can also be the insulating bodies for having an entirety, not to be limited.

It is different from prior art, the socket connector of the utility model embodiment, based on standard USB Type-C connectors Extending design, by increase the 3rd female terminal, by the 3rd female terminal be located at base portion both ends, can be directed to user need Ask and assemble extra terminal, also compatible standard USB Type-C plug connectors.

The utility model embodiment also provides a kind of electric connector combination, including above-mentioned plug connector 10 and above-mentioned Socket connector 20, the plug division 2110 of socket connector 20 coordinate with the first grafting space 110 of plug connector 10, socket The socket end subgroup of connector 20 docks cooperation, i.e. the first female terminal 2300 and with the plug end subgroup of plug connector 10 The docking of one plug terminal 200 coordinates, and the second female terminal 2400 docks cooperation, the 3rd female terminal with the second plug terminal 300 2500 dock cooperation with the 3rd plug terminal 400.

It should be noted that preferably implementation of the present utility model is given in specification of the present utility model and its accompanying drawing Example, still, the utility model can be realized by many different forms, however it is not limited to the implementation described by this specification Example, these embodiments are not as the extra limitation to the utility model content, there is provided the purpose of these embodiments is made to this reality With the understanding more thorough and comprehensive of new disclosure.Also, above-mentioned each technical characteristic continues to be mutually combined, formed not upper The various embodiments that face is enumerated, it is accordingly to be regarded as the scope of the utility model specification record；Further, to the common skill in this area For art personnel, it can according to the above description be improved or be converted, and all these modifications and variations should all belong to this practicality The protection domain of new appended claims.

Claims (10)

1. A kind of 1. plug connector, it is characterised in that including：

   The insulating body of integral structure, there is the first grafting space, the insulating body includes upper wall, lower wall and two side, The upper wall inner surface forms first end pilot trench to first grafting is spatially extended, and the lower wall inner surface is inserted to described first Spatially extended formation Second terminal groove is connect, third terminal groove is formed between the upper wall and the lower wall and the two side, and For the first grafting space, the part that the first grafting space is protruded in the two side is provided with the third terminal geosynclinal convex The part that the first grafting space is protruded in opening, the upper wall and the two side forms extension, the lower wall and institute State the part formation lower extension that the first grafting space is protruded in two side；

   First plug terminal, it is fixed on the first end pilot trench；

   Second plug terminal, it is fixed on the Second terminal groove；

   3rd plug terminal, it is fixed on the third terminal groove；

   Metal shell, is fixed on the insulating body, and the metal shell partly encloses with the upper extension and the lower extension Close and form the second grafting space；

   First plug terminal, the second plug terminal and the 3rd plug terminal include contact site, connecting portion and weld part, institute The contact site for stating the first plug terminal and second plug terminal is revealed in the first grafting space, the 3rd plug end The contact site of son is revealed in the second grafting space.
2. 2. plug connector according to claim 1, it is characterised in that

   The first grafting space and the second grafting space are square structure.
3. 3. plug connector according to claim 1, it is characterised in that

   The height of the contact site of 3rd plug terminal is more than the height of part connecting portion, the connection of the 3rd plug terminal Portion is provided with the clamping part bent up or down close to one end of weld part；

   The fixing groove matched with the clamping part is provided between the upper wall and the lower wall and the two side.
4. 4. plug connector according to claim 1, it is characterised in that

   The direction in the two side to the first grafting space, which extends, to form the first projection；

   The connecting portion of 3rd plug terminal is provided with projection, described raised to be in contact with first projection.
5. 5. plug connector according to claim 1, it is characterised in that

   The inside of the insulating body is provided with the second projection；

   The connecting portion of first plug terminal and second plug terminal is provided with stuck point, the stuck point and described second Projection is fixed.
6. A kind of 6. socket connector, it is characterised in that including：

   Socket insulating body, barricade, the first female terminal, the second female terminal, the 3rd female terminal, and be fixed on described The jack housing of socket insulating body；

   The barricade, first female terminal, second female terminal and the 3rd female terminal produced by insert molding in In the socket insulating body, the socket insulating body has a plug division；

   The socket insulating body includes base portion and the hyoplastron being connected with the base portion, and the barricade is embedded in the hyoplastron, First female terminal and the second female terminal are located at the both sides up and down of the barricade, and the 3rd female terminal is located at institute State the both ends of base portion；

   Grafting frame mouth of the front port of the jack housing formed with square structure.
7. 7. socket connector according to claim 6, it is characterised in that

   First female terminal, the second female terminal and the 3rd female terminal include contact site, connecting portion and weld part；

   The contact site of first female terminal and second female terminal includes contact site main body and terminal head portion, described Contact site main body is exposed to the upper and lower surface of the hyoplastron, and the terminal head portion is provided with Z-shaped kink, the thickness of the terminal head portion Less than the thickness of the contact site main body.
8. 8. socket connector according to claim 7, it is characterised in that

   The contact site of 3rd female terminal is exposed to the upper surface of the base portion；Or

   3rd female terminal includes upper 3rd female terminal and lower 3rd female terminal, and upper 3rd female terminal is with The contact site of 3rd female terminal is exposed to the upper and lower surface of the base portion respectively.
9. 9. according to the socket connector described in claim any one of 6-8, it is characterised in that

   The socket insulating body includes the first insulating body and the second insulating body, the barricade, the first female terminal, Two female terminals, the 3rd female terminal and first insulating body edge bury shaping；

   The front end of the barricade is provided with a hollow rectangle region, and the upper and lower surface of first insulating body forms respectively The front end of terminal groove and lower end pilot trench, part upper end pilot trench and lower end pilot trench protrudes from the rectangle region；

   Second insulating body is taken shape in outside first insulating body.
10. 10. a kind of electric connector combination, it is characterised in that including the plug connector as described in claim 1-5 any one of item And the socket connector as described in claim 6-9 any one of item；

    The plug division of the socket connector and the first grafting interference fit of the plug connector；

    The first female terminal, the second female terminal, the 3rd female terminal of the socket connector are connected with the plug respectively First plug terminal of device, the second plug terminal, the docking of the 3rd plug terminal coordinate.